Severity
Medium
Can I keep driving?
Usually drivable, but get it diagnosed without delay.
First step
A typical diagnostic sequence used by mechanics, provided here for educational reference only. Diagnostic work should be performed by a qualified mechanic with the appropriate tools and training. 1. Read live data on NOx sensor values during sustained driving, healthy sensors track exhaust NOx down to near zero on Euro 6 cars with active SCR 2. Inspect the connector and immediate wiring for damage or contamination 3. Check for service bulletins; manufacturers have issued software updates for NOx sensor codes on several model years 4. Test the sensor electrically against manufacturer spec, NOx sensors are integrated electronic modules and behave differently from simpler sensors 5. If wiring and software are healthy, sensor replacement is the typical fix
P2200 is a Powertrain (engine, transmission, fuel system) fault code. It indicates: NOx Sensor Circuit Bank 1 . This is a standardised OBD-II code. The technical definition is the same regardless of the make or model of vehicle, although specific causes and symptoms can vary between vehicles.
This information follows the generic OBD-II definition and does not replace a vehicle-specific diagnosis. The severity rating is rule-based; an authorised diagnostic reading is required for a definitive answer.
